Can You Use a Spare Tire on the Highway?

[StJordan]

You can use a spare tire on the highway, but non-full-size spare tires should not exceed 80 km/h. Here are some precautions for using a spare tire: Replace unused spare tires promptly: Tires are rubber products and will age if stored for too long. Generally, the aging period for tires is about 4 years, so spare tires should be replaced after 4 years. Full-size spare tires also require speed control on highways: Even with full-size spare tires, speed should be controlled when driving on highways because the surface friction coefficients of new and old tires are inconsistent. Additionally, due to improper tools, the tightening force of nuts may not meet requirements, posing risks during high-speed driving.